You must FOIL (first, outside, inside, last)
First (The first number/variable of each parentheses must be multiplied together)
(a + 3)(a - 2)
[tex]a^{2}[/tex]
Outside (The outside number/variable of each parentheses must be multiplied together)
(a + 3)( a - 2)
-2a
Inside (The inside number/variable of each parentheses must be multiplied together)
(a + 3)(a - 2)
3a
Last (The last number/variable of each parentheses must be multiplied together)
(a + 3)( a - 2)
-6
Now add/subtract each FOIL answer according to its sign
[tex]a^{2}[/tex] - 2a + 3a - 6
Combine like terms
[tex]a^{2}[/tex] + a - 6
Hope this helped!
~Just a girl in love with Shawn Mendes
